A steel bar 600mm long andhaving 30mm diameter, isturned down to 25mmdiameter for one fourth of itslength. It is heated at 30 Cabove room temperature,clamped at both ends and thenallowed to cool to roomtemperature. If the distancebetween the clamps isunchanged, the maximumstress in the bar (a = 12.5 x 10-6 per C and E = 200 GN/m2) is *25 MN/m240 MN/m275 MN/m250 MN/m2

Given data: L=600 mmd=30 mm∆T=30°Cα=12.5×10-6/°CE=200 GN/m2

Answered: A steel bar 600mm long and having 30mm…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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